|
Title
Role of pretreatment with a composite microemulsion in saccharification of bamboo
Authors
LONG LI BIN WANG DE-TAO LIU FEI YANG and REN-DANG YANG
Received
March 1, 2013
Published
Volume 47 Issue 9-10 October-December
Keywords
composite microemulsion, ionic liquids, pretreatment, enzymatic hydrolysis
Abstract
The highly dense biostructure and complex coating of biomass, which can decrease saccharifying efficiency and
increase production cost, has been the bottleneck of biomass utilization. In this study, a self-designed composite
microemulsion was used for lignocellulose (bamboo) pretreatment. The improvement of physicochemical properties
and saccharifying efficiency after pretreatment was studied. The results showed that a stable composite microemulsion
was obtained with an optimal mass ratio of 1:2:1:3:3, corresponding to cetyltrimethyl ammonium bromide/n-butyl
alcohol/BminCl/ammonia. Lignocelluloses yielded a reducing sugar content of 57.8% via pretreatment with the
composite microemulsion under the following material conditions: particle size between 0.25 mm to 0.38 mm,
temperature of 70 °C, and reacting time of 16 h. The relative crystallinity of lignocellulose increased marginally and
thermal stability improved obviously, while cellulose was protected well after pretreatment.
Link
|
